Hi Robert I occurs on the hardware,I haven't tried the emulator yet as it takes so long to build everything :( (Stephan, do you have the emulator running at the mo). I got suspicious when I noticed the rtt fbo id was 2, after a little reading it became clear this issue had tripped a few people up.
In terms of fixing it with a define, where would you feel the best place for the define is as the 0 id is used in FrameBufferObject.cpp and RenderStage.cpp. The reason I ask is that you need to #include TargetConditionals.h to determine we are on the IOS platform and this is already done in GL header. So I was wondering if perhaps I should put it into GL header. On a slightly different note. I'm starting to feel the need for an OSG_TARGET_PLATFORM or something similar. As we do more gles platforms I think determining the platform we are building for is going to become more difficult and at the moment it can be a problem for things like IPhone as CMake and XCode may just think we are building for OSX, since thats the platform we are on. An OSG_TARGET_PLATFORM define would give us a one stop shop for that information. Cheers Tom On 4 November 2010 09:29, Robert Osfield <[email protected]> wrote: > Hi Thomas, > > Interesting investigation and fix. Does this issue occur on the > target hardware and software emulators of it? > > Robert. > > On Thu, Nov 4, 2010 at 5:56 AM, Thomas Hogarth > <[email protected]> wrote: > > Fixed it, > > > > So after a bit of thinking I realised that the default buffer must be re > > binded at some point so did another search and found 3 calls to > > > > fbo_ext->glBindFramebuffer(GL_FRAMEBUFFER_EXT, 0); > > > > And my earlier hunch was correct that ios' default buffer id is actually > 1 > > so changing to the below makes it work > > > > fbo_ext->glBindFramebuffer(GL_FRAMEBUFFER_EXT, 1); > > > > So now I need to add a DEFAULT_FRAMEBUFFER define or something in the > > FrameBufferObject header file that is set it to 1 on ios > > > > Over all though, good news. Performance seems great too. > > > > Tom > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > >
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